Join Date: Apr 2007
Feedback Score: 0 reviews
I agree with drinkypoo; I think its the strainer on the sending unit being broke, and pulling in air. Let me ask you this- does it do it when both tanks are full? or after you've put a couple of miles on it after fill up?
When I first got my 89, I was told that neither one of the gauges work, and to go by the mileage. When I cranked my pump all the way up, the truck went from 17 to 14, and I ran it out of fuel a couple of times...while still having about 6-10 gallons IN the tank. I also noticed small little black pieces of plastic in the sediment bowl of the filter. I believe this to be little pieces of the broken sender/ pick-up tube on the sending unit. Thats why I only get to use about 1/2 my tanks' capacity.
89 F350 SRW Reg Cab 4X4, 3.55:1, ZF-5 w/ LUK single mass, added Banks sidewinder 12-06. So far so good. 17 mpg using B50 bio blend.
94 F350 SRW CC E4OD and factory turbo- currently under construction